Mazda 3 manuals

Mazda 3 Service Manual: No.27 Fuel Refill Concerns [Mzr 2.0, Mzr 2.5]

Mazda 3 Service Manual / Engine / Fuel / No.27 Fuel Refill Concerns [Mzr 2.0, Mzr 2.5]


27

FUEL REFILL CONCERNS

DESCRIPTION

  • Fuel tank does not fill smoothly.

POSSIBLE CAUSE

  • PCM DTC is stored

  • Nonreturn valve malfunction

  • Improper use of fuel nozzle

  • Inadequate fuel filling speed

WARNING:

  • The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services:

    • Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.

    • Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete “BEFORE SERVICE PRECAUTION” and “AFTER SERVICE PRECAUTION” described in this manual..

CAUTION:

  • Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material.


Diagnostic procedure

STEP

INSPECTION

ACTION

1

Perform the PCM DTC inspection using the M-MDS.

(See ON-BOARD DIAGNOSTIC TEST [MZR 2.0, MZR 2.5].)

Are any DTCs present?

Yes

Go to the appropriate DTC inspection.

(See DTC TABLE [MZR 2.0, MZR 2.5].)

No

Go to the next step.

2

Remove the fuel-filler pipe.

Make sure nonreturn valve is installed properly.

Inspect the nonreturn valve operation.

Is there any malfunction?

Yes

Nonreturn valve is installed improperly:

  • Reinstall the nonreturn valve to proper position.

Nonreturn valve does not operate properly:

  • Replace the nonreturn valve.

No

Inspect the following:

  • Improper use of fuel nozzle

  • Inadequate fuel filling speed

Repair or replace the malfunctioning part according to the inspection result.

3

Verify test results.

  • If normal, return to the diagnostic index to service any additional symptoms.

    (See SYMPTOM DIAGNOSTIC INDEX [MZR 2.0, MZR 2.5].)

  • If the malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.

    • If the vehicle is repaired, troubleshooting is completed.

    • If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later calibration is available. Retest.


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